大木優拓
type: MusicGroup
popularity: 19
followers: 82
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x76013ebe10146803b0929dd42460ab4d40822ef190c86a0e58c34a0be15f4d40
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953741
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953741
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a0810bcd-aee7-47da-aa90-85767acb50e7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a0810bcd-aee7-47da-aa90-85767acb50e7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a0810bcd-aee7-47da-aa90-85767acb50e7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x76013ebe10146803b0929dd42460ab4d40822ef190c86a0e58c34a0be15f4d40","name":"大木優拓","registered_at":"2026-06-14T21:26:06Z","symbol":"NIM0581237","token_address":"0x7d5b1467c72a469b3f36a9f0ddbedfefc4bf4072","type":"artist","uuid":"a0810bcd-aee7-47da-aa90-85767acb50e7"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76013ebe10146803b0929dd42460ab4d40822ef190c86a0e58c34a0be15f4d40. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0810bcd-aee7-47da-aa90-85767acb50e7.json and https://artists.proofprofile.net/proofs/artist/a0810bcd-aee7-47da-aa90-85767acb50e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:44:49Z
  text: {"copyright_id":"0x76013ebe10146803b0929dd42460ab4d40822ef190c86a0e58c34a0be15f4d40","name":"大木優拓","registered_at":"2026-06-14T21:26:06Z","symbol":"NIM0581237","token_address":"0x7d5b1467c72a469b3f36a9f0ddbedfefc4bf4072","type":"artist","uuid":"a0810bcd-aee7-47da-aa90-85767acb50e7"}